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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 6:53AM | Sunset 6:14PM | Wednesday February 20, 2019 1:02 AM CST (07:02 UTC) | Moonrise 7:40PM | Moonset 7:51AM | Illumination 99% |  |
GMZ335 Galveston Bay- 950 Pm Cst Tue Feb 19 2019
Rest of tonight..Northwest winds around 5 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. Areas of fog. Scattered showers and areas of drizzle.
Wednesday..North winds 10 to 15 knots decreasing to 5 to 10 knots in the afternoon. Bay waters slightly choppy becoming smooth in the afternoon. Isolated showers.
Wednesday night..Northeast winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. Scattered showers.
Thursday..Northeast winds 10 to 15 knots. Bay waters slightly choppy. Showers likely.
Thursday night..Northeast winds 5 to 10 knots becoming east after midnight. Bay waters smooth. Patchy fog. A chance of showers.
Friday..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. Patchy fog. A chance of showers.
Friday night..South winds 10 to 15 knots. Bay waters slightly choppy. Patchy fog. A chance of showers.
Saturday..South winds around 15 knots becoming west in the afternoon. Bay waters slightly choppy to choppy becoming slightly choppy in the afternoon. Patchy fog in the morning. A chance of showers.
Saturday night..Northwest winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Sunday..Northeast winds around 10 knots becoming 5 to 10 knots in the afternoon. Bay waters smooth to slightly choppy becoming smooth in the afternoon.
Sunday night..East winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A slight chance of showers.
Rest of tonight..Northwest winds around 5 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. Areas of fog. Scattered showers and areas of drizzle.
Wednesday..North winds 10 to 15 knots decreasing to 5 to 10 knots in the afternoon. Bay waters slightly choppy becoming smooth in the afternoon. Isolated showers.
Wednesday night..Northeast winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. Scattered showers.
Thursday..Northeast winds 10 to 15 knots. Bay waters slightly choppy. Showers likely.
Thursday night..Northeast winds 5 to 10 knots becoming east after midnight. Bay waters smooth. Patchy fog. A chance of showers.
Friday..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. Patchy fog. A chance of showers.
Friday night..South winds 10 to 15 knots. Bay waters slightly choppy. Patchy fog. A chance of showers.
Saturday..South winds around 15 knots becoming west in the afternoon. Bay waters slightly choppy to choppy becoming slightly choppy in the afternoon. Patchy fog in the morning. A chance of showers.
Saturday night..Northwest winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Sunday..Northeast winds around 10 knots becoming 5 to 10 knots in the afternoon. Bay waters smooth to slightly choppy becoming smooth in the afternoon.
Sunday night..East winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A slight chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 950 Pm Cst Tue Feb 19 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Periods of unsettled weather can be expected for much of the week with upper level disturbances moving overhead and a coastal trough fluctuating north and south along the coast. SEa fog will linger into the evening but should clear out early Wednesday morning as winds return to the north behind a reinforcing cold front. Chances of fog return Thursday night and will linger on through Saturday afternoon.
Synopsis for high island to matagorda ship channel out 60 nm.. Periods of unsettled weather can be expected for much of the week with upper level disturbances moving overhead and a coastal trough fluctuating north and south along the coast. SEa fog will linger into the evening but should clear out early Wednesday morning as winds return to the north behind a reinforcing cold front. Chances of fog return Thursday night and will linger on through Saturday afternoon.
7 Day Forecast for Marine Location Near Taylor Lake Village, TX
Hourly EDIT Helplocation: 29.56, -95.07 debug
Area Discussion for - Houston/Galveston, TX
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus64 khgx 200548 afdhgx area forecast discussion national weather service houston galveston tx 1148 pm cst Tue feb 19 2019 Aviation While this evening's cold front is hard to locate via surface observations lack of radar returns, there are enough clues (terminal pressure rises, slightly lower dew points) to determine that the boundary is now making its way across the northern tier counties of our forecast area at midnight. As the front moves across southeast texas early Wednesday morning, periods of either mist, drizzle or very light showers will form just downstream of the front. Lifr to vlifr pre-frontal ceilings will improve to ifr with the frontal passage. As cooler and drier air works its way into the area, expect cloud bases to increase to MVFR and scatter out through the daylight morning hours.VFR skc from around noon onward for most regional hubs under a northwest wind that will be slowly veering northeast through early Thursday. 31 Prev discussion issued 857 pm cst Tue feb 19 2019 discussion... will be keeping rain chances in the forecast during the overnight hours. As the day progresses tomorrow, the cold front in the gulf moves further off to the east allowing for surface high pressure and some drier air to build into the area from the west. Only a couple minor changes were made to the grids on the evening update. 42 prev discussion... Issued 640 pm cst Tue feb 19 2019 discussion... very low lifr to vlifr ceilings and periods of ifr fog that becomes worse the closer you get to the coast. Expect these conditions to occur ahead of the next front that is timed to move across the region early Wednesday morning. The following air mass will dry the regional atmosphere out enough to lift areawide ceilings to MVFR slight before or after sunrise... Scattering out toVFR around noon tomorrow. Post-frontal north winds will slowly die out and veer more northeast in time through late tomorrow. 31 prev discussion... Issued 417 pm cst Tue feb 19 2019 discussion... while radar looks fairly quiet, obs cameras are indicating that we are seeing some rather damp misty drizzly foggy weather across the cwa this afternoon. The bulk of the more organized showers are remaining NW and E of the region so far. We could get one more round of scattered showers isolated thunderstorms as the surface |
coastal low moves up from the gulf and across the area later this evening. Clearing cooler conditions on tap after midnight when this system associated rains move out to the ne. This brief break from the cloudy unsettled weather (early weds) is expected to be just that. This very progressive weather pattern we have been in will be gearing up once again weds night with the return of slightly deeper moisture as the next coastal low begins to form over the lower tx coast. The persistent strong SW winds aloft will be drawing additional clouds moisture across the area through the end of the week... With rain chances increasing once again with the passage of embedded upper level disturbances. Showers thunderstorm development should be most active late fri into Sat with onshore winds strengthening ahead of the next cold front progged for Sat afternoon. Per extended models... The next repeat of this cycle could start late sun. 41 marine... areas of sea fog will linger this evening until a low pressure area near the coast moves off to the northeast and winds swing back around to the northwest. A coastal flood advsy remains in effect until early evening for the bolivar area where wave run up and high tide levels possibly cause some overwash at hwy 87 124. Swells will be slower to fall offshore so will be extending the small craft advisory there. Otherwise, still looking at a complex marine forecast this week. Another area of low pressure will develop off deep south texas on Thursday and this feature will take a similar track as today's and approach SE tx by late afternoon. Warmer and more moist air will flow over the cooler shelf waters and produce another threat of sea fog Thursday night-sat afternoon until the next front pushes through. 47 Preliminary point temps pops College station (cll) 41 62 44 56 52 30 10 30 50 50 houston (iah) 48 66 49 59 56 40 10 50 60 50 galveston (gls) 53 62 57 64 63 40 20 50 60 40 Hgx watches warnings advisories Tx... None. Gm... Dense fog advisory until 3 am cst Wednesday for the following zones: coastal waters from freeport to matagorda ship channel tx out 20 nm... Coastal waters from high island to freeport tx out 20 nm. Discussion... 42 aviation marine... 31 |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| MGPT2 - 8770613 - Morgans Point, TX | 10 mi | 33 min | NW 7 G 9.9 | 51°F | 58°F | 1010.5 hPa | ||
| EPTT2 - 8771013 - Eagle Point, TX | 10 mi | 33 min | NW 4.1 G 6 | 51°F | 57°F | 1010.5 hPa | ||
| NCHT2 - 8770777 - Manchester, TX | 15 mi | 33 min | NW 6 G 9.9 | 48°F | 64°F | 1010.2 hPa | ||
| GRRT2 | 20 mi | 33 min | NW 2.9 G 5.1 | 52°F | 56°F | 1010.7 hPa | ||
| GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 23 mi | 33 min | NNW 9.9 G 12 | 52°F | 57°F | 1009.7 hPa | ||
| GTOT2 | 23 mi | 33 min | NNW 6 G 9.9 | 52°F | 57°F | 1010.1 hPa | ||
| RLOT2 - 8770971 - Rollover Pass, TX | 30 mi | 33 min | NW 11 G 11 | 53°F | 55°F | 1010.2 hPa | ||
| LUIT2 | 34 mi | 33 min | NW 8 G 9.9 | 52°F | 1010.5 hPa | |||
| HIST2 | 36 mi | 33 min | NNW 5.1 G 6 | 53°F | 57°F | 1010.4 hPa | ||
| 42043 - GA-252 TABS B | 41 mi | 123 min | NNE 7.8 G 9.7 | 60°F | 1009.6 hPa | |||
| 42035 - GALVESTON 22NM East of Galveston, TX | 42 mi | 23 min | NNW 9.7 G 12 | 56°F | 61°F | 1010.7 hPa | ||
| FCGT2 - 8772447 - USCG Freeport, TX | 44 mi | 33 min | NNW 2.9 G 6 | 51°F | 57°F | 1011 hPa | ||
| FPST2 | 45 mi | 33 min | NW 6 G 8.9 | 51°F | 57°F | 1010.2 hPa |
Wind History for Morgans Point, TX
(wind in knots) EDIT (on/off) Help| 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | |
| Last 24hr | NE G14 | NE | NE G15 | NE G21 | NE G14 | NE | NE G16 | NE G15 | NE G16 | NE | NE G16 | NE G15 | NE | NE G13 | NE G11 | N | N G10 | N | NW G13 | N G12 | N G12 | N | N G10 | NW G11 |
| 1 day ago | N G21 | N G16 | N G18 | N G19 | NE | NE G16 | NE G16 | NE G19 | NE G21 | NE G22 | NE | NE G17 | NE G14 | NE | E G17 | E | NE G14 | NE G16 | NE G14 | NE G16 | NE G12 | NE | N G9 | |
| 2 days ago | S | W | SW | NW G8 | N | N G10 | N G14 | N G17 | N G21 | N G19 | N G19 | N G20 | N G17 | N G19 | N G15 | N | N | NE G21 | NE G17 | N G14 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Houston / Ellington, TX | 7 mi | 73 min | NW 6 | 2.00 mi | Fog/Mist | 48°F | 48°F | 100% | 1011.2 hPa |
| Houston, Pearland Regional Airport, TX | 10 mi | 70 min | NW 5 | 3.00 mi | Fog/Mist | 50°F | 50°F | 100% | 1010.9 hPa |
| Houston, Houston Hobby Airport, TX | 13 mi | 70 min | NNW 5 | 5.00 mi | Fog/Mist | 49°F | 48°F | 97% | 1011 hPa |
| John Dunn Helistop, TX | 20 mi | 68 min | NNW 6 | 1.25 mi | Fog/Mist | 48°F | 48°F | 100% | 1010.5 hPa |
| Houston Southwest Airport, TX | 22 mi | 68 min | NNW 5 | 3.00 mi | Fog/Mist | 48°F | 47°F | 100% | 1011.2 hPa |
| Galveston, Scholes Field, TX | 23 mi | 71 min | NNW 11 | 8.00 mi | Overcast | 53°F | 51°F | 93% | 1010.4 hPa |
Wind History from EFD (wind in knots)
| 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | |
| Last 24hr | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | N | N | N | NW | NW | NW | N | N | NW | |
| 1 day ago | N | N | N G18 | N | NE | NE G19 | NE G19 | NE G19 | N | NE G19 | E G17 | NE | NE | NE | NE | NE | NE | NE | NE | NE | ||||
| 2 days ago | S | S | SW | N | N | NW | N | N | NW | N | N | N G18 | N | N | N G19 | N | N |
Tide / Current Tables for Clear Lake, Harris Co. Park, Texas (2)
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataClear Lake
Click for Map
Wed -- 04:49 AM CST 0.41 feet Low Tide
Wed -- 06:55 AM CST Sunrise
Wed -- 07:50 AM CST Moonset
Wed -- 09:25 AM CST 0.70 feet High Tide
Wed -- 05:17 PM CST -0.41 feet Low Tide
Wed -- 06:13 PM CST Sunset
Wed -- 07:39 PM CST Moonrise
Wed -- 11:57 PM CST 0.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 04:49 AM CST 0.41 feet Low Tide
Wed -- 06:55 AM CST Sunrise
Wed -- 07:50 AM CST Moonset
Wed -- 09:25 AM CST 0.70 feet High Tide
Wed -- 05:17 PM CST -0.41 feet Low Tide
Wed -- 06:13 PM CST Sunset
Wed -- 07:39 PM CST Moonrise
Wed -- 11:57 PM CST 0.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0.7 | 0.6 | 0.6 | 0.5 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.7 | 0.7 | 0.6 | 0.5 | 0.2 | 0 | -0.2 | -0.3 | -0.4 | -0.4 | -0.2 | -0 | 0.2 | 0.4 | 0.6 |
Tide / Current Tables for Bolivar Roads, Texas Current
EDIT (on/off) Help One Week of DataBolivar Roads
Click for Map
Wed -- 12:01 AM CST -0.00 knots Slack
Wed -- 01:16 AM CST -0.15 knots Max Ebb
Wed -- 02:34 AM CST 0.00 knots Slack
Wed -- 03:52 AM CST 0.17 knots Max Flood
Wed -- 04:55 AM CST -0.00 knots Slack
Wed -- 06:53 AM CST Sunrise
Wed -- 07:48 AM CST Moonset
Wed -- 10:44 AM CST -2.33 knots Max Ebb
Wed -- 02:48 PM CST 0.00 knots Slack
Wed -- 05:50 PM CST 1.90 knots Max Flood
Wed -- 06:12 PM CST Sunset
Wed -- 07:38 PM CST Moonrise
Wed -- 11:37 PM CST -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:01 AM CST -0.00 knots Slack
Wed -- 01:16 AM CST -0.15 knots Max Ebb
Wed -- 02:34 AM CST 0.00 knots Slack
Wed -- 03:52 AM CST 0.17 knots Max Flood
Wed -- 04:55 AM CST -0.00 knots Slack
Wed -- 06:53 AM CST Sunrise
Wed -- 07:48 AM CST Moonset
Wed -- 10:44 AM CST -2.33 knots Max Ebb
Wed -- 02:48 PM CST 0.00 knots Slack
Wed -- 05:50 PM CST 1.90 knots Max Flood
Wed -- 06:12 PM CST Sunset
Wed -- 07:38 PM CST Moonrise
Wed -- 11:37 PM CST -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0 | -0.1 | -0.1 | 0.1 | 0.2 | -0 | -0.5 | -1 | -1.6 | -2 | -2.3 | -2.3 | -2.1 | -1.6 | -0.8 | 0.2 | 1.2 | 1.8 | 1.9 | 1.7 | 1.3 | 0.9 | 0.5 | 0.2 |
Weather Map and Satellite Images
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GOES Local Image of EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Houston/Galveston, TX (2,6,7,8)
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Ground Weather Radar Station Houston/Galveston, TX
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Gulf Stream Current
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Disclaimer: The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program. |